Publications

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Conference Paper
Silva, T., Costa F., Fernandes J., Calvo R. \é\}rio, & Mateus O. \á\}vio (2016).  The use of a portable X-ray fluorescence analyzer in the reconstitution of dinosaur fossils. European Conference on X-Ray Spectrometry. , June 19 \–\} 24, 2016, Gothenburg, Sweden Abstract
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Waskow, K., & Mateus O. (2016).  What is your age? Dorsal rib histology as tool for individual age determination and analysis of life history traits in dinosaurs and other vertebrates. Annual Meeting of the Paleontological Society of Germany (PalGes). 87. Abstract
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Conference Proceedings
Marzola, M., Mateus O., Milàn J., & Clemmensen L. B. (2017).  The 2016 Dinosaur Expedition to the Late Triassic of the Jameson Land Basin, East Greenland. Abstract book of the XV Encuentro de Jóvenes Investigadores en Paleontología/XV Encontro de Jovenes Investigadores em Paleontologia, Pombal, 428 pp.. 249–253. Abstract08._ejip_2017_-_marzola_et_al._2017._the_2016_dinosaur_expedition_to_the_late_triassic_of_the_jameson_land_basin_east_greenland.pdf

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Marzola, M., Mateus O., & Moreno-Azanza(eds)M. (2018).  Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontology. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. , Caparica: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboaeavp_2018_abstract_book.pdf
Marzola, M., Mateus O., & Moreno-Azanza(eds)M. (2018).  Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontology. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. , Caparica: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstract
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Costa, F., & Mateus O. (2018).  Alcovasaurus longispinus as a dacentrurine stegosaur (Dinosauria) and contributions to the diagnosis of Dacentrurinae. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 50.: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractcosta__mateus_2018_eavp_abstract.pdf

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Costa, F., & Mateus O. (2018).  Alcovasaurus longispinus as a dacentrurine stegosaur (Dinosauria) and contributions to the diagnosis of Dacentrurinae. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 50.: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstract

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Schulp, A. S., Mateus O., Polcyn M., Gonçalves A., & Jacobs L. L. (2019).  Angola and its role in the paleobiogeography of Gondwana. Journal of Vertebrate Paleontology, Program and Abstracts. 188.schulp_et_al_2019_angola_svp_abstract.pdf
Schulp, A. S., Mateus O., Polcyn M., c}alves G. {\cA., & Jacobs L. L. (2019).  Angola and its role in the paleobiogeography of Gondwana. Journal of Vertebrate Paleontology, Program and Abstracts. 188. Abstract
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Rotatori, F. M., Camilo B., Bertozzo F., Mateus O., & Moreno-Azanza M. (2022).  A basal ankylopollexian dinosaur from the Late Jurassic of Portugal and its implications for iguanodontian diversity. Abstract book of the XIX Annual Conference of the European Association of Vertebrate Palaeontologists, Benevento/Pietraroja, Italy, 27th June-2nd July 2022. 170-171.: PalaeoVertebrata, Special Volume 1- 2022, 224. Doi: 10.18563/pv.eavp Abstractrotatorietal_2022.pdf

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Saleiro, A., Guillaume A. R. D., Rotatori F. M., Ríos-Ibañez M., López E. D., Conti S., Martino R., Puértolas-Pascual E., Mateus O., & Moreno-Azanza M. (2022).  A beta taxonomy approach to Late Jurassic and Early Cretaceous dinosaur assemblages. Abstract book of the XIX Annual Conference of the European Association of Vertebrate Palaeontologists, Benevento/Pietraroja, Italy, 27th June-2 nd July 2022.. 176-177.: PalaeoVertebrata, Special Volume 1- 2022, 224. Doi: 10.18563/pv.eavp2022 Abstractsaleiroetal_2022-eavp.pdf

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Jacobs, L. L., Myers T. S., Goncalves A. O., Graf J. F., Jacobs B. F., KAPPELMAN J. W., Mateus O., Polcyn M. J., RASBURY E. T., & Vineyard D. P. (2013).  Cabinda revisited: age and environment of new Cenozoic vertebrate fossils from northern Angola. Geological Society of America Abstracts with Programs. Vol. 45, No. 7, p.0.
Ribeiro, V., & Mateus O. (2012).  Chronology of the Late Jurassic dinosaur faunas, and other reptilian faunas, from Portugal. Journal of Vertebrate Paleontology, Program and Abstracts, 2012, p. 161 ISSN 1937-2809. ribeiro__mateus_2012_chronology_dinosaurs_portugal_abstract_book_meeting_abstracts.pdf.pdf
Mateus, O., Polcyn M. J., Jacobs L. L., Araújo R., Schulp A. S., Marinheiro J., Pereira B., & Vineyard D. (2012).  Cretaceous amniotes from Angola: dinosaurs, pterosaurs, mosasaurs, plesiosaurs, and turtles. V Jornadas Internacionales sobre Paleontología de Dinosaurios y su Entorno. 71-105., Salas de los Infantes, Burgos Abstractmateus_et_al_2012_amniotes_from_angola_cretaceous_amniotes_from_angola_dinosaurs_pterosaurs_mosasaurs.pdf

Although rich in Cretaceous vertebrate fossils, prior to 2005 the amniote fossil record of Angola was poorly known. Two horizons and localities have yielded the majority of the vertebrate fossils collected thus far; the Turonian Itombe Formation of Iembe in Bengo Province and the Maastrichtian Mocuio Formation of Bentiaba in Namibe Province. Amniotes of the Mesozoic of Angola are currently restricted to the Cretaceous and include eucryptodire turtles, plesiosaurs, mosasaurs, pterosaurs, and dinosaurs. Recent collecting efforts have greatly expanded our knowledge of the amniote fauna of Angola and most of the taxa reported here were unknown prior to 2005.

Guillaume, A. R. D., Moreno-Azanza M., Puértolas-Pascual E., & Mateus O. (2018).  Crocodylomorph teeth from the Lourinhã Formation, Portugal (Late Jurassic). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 80., Caparica, Portugal June 26th-July 1st, 2018 Abstractguillaume_et_al_2018_eavp_abstract.pdf

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Guillaume, A. R. D., Moreno-Azanza M., Puértolas-Pascual E., & Mateus O. (2018).  Crocodylomorph teeth from the Lourinhã Formation, Portugal (Late Jurassic). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 80., Caparica, Portugal June 26th-July 1st, 2018 Abstract

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Azanza, M. M., Coimbra R., Puértolas-Pascual E., Russo J., Bauluz B., & Mateus O. (2019).  Crystallography of Lourinhanosaurus eggshells (Dinosauria, Theropoda, Allosauroidea). Journal of Vertebrate Paleontology, Program and Abstracts. 156-157.moreno_azanza_et_al_2019_svp_abstract.pdf
Azanza, M. M., Coimbra R., Puértolas-Pascual E., Russo J., Bauluz B., & Mateus O. (2019).  Crystallography of Lourinhanosaurus eggshells (Dinosauria, Theropoda, Allosauroidea). Journal of Vertebrate Paleontology, Program and Abstracts. 156-157. Abstract
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Leal, S., Mateus O., Tomás C., & Dionisio A. (2014).  Degradation processes and consolidation of Late Jurassic sandstone dinosaur tracks in museum environment (Museum of Lourinhã, Portugal). EGU General Assembly 2014 - Geophysical Research Abstracts. Vol. 16, EGU2014-9026-1, 2014.leal_et_al_2014_tracks_lab_egu2014-9026-1.pdf
Hendrickx, C., Mateus O., & Araújo R. (2014).  The dentition of megalosaurid theropods, with a proposed terminology on theropod teeth. XII EAVP Meeting XII Annual Meeting of the European Association of Vertebrate Palaeontologists – Abstract Book. p. 75., Torino 24-28 June 2014hendrickx_et_al_2014_megalosaurid_teeth_eavp.pdf
Castanhinha, R., Araújo R., & Mateus O. (2009).  Dinosaur eggshell and embryo localities in Lourinhã Formation, Late Jurassic, Portugal. Journal of Vertebrate Paleontology, 29(3): . 76A. Abstractcastanhinhaetal2009dinosaureggshellp.pdf

Four different localities from the Late Jurassic of Lourinhã formation with eggshells and embryos were studied: Paimogo (lower Amoreira-Porto Novo member), Peralta (Praia Azul member), Porto das barcas (Bombarral member) and Casal da Rôla (Amoreira-Porto Novo member). All but Casal da Rôla have embryonic material. Preliminary results show that eggshells from Paimogo correspond to obliquiprismatic morphotype (0.92mm thick), similar to those from Morrison Formation. Within Paimogo site a different type of eggshell was discovered, having a radial section of 153 μm with a mammilary layer measuring 65 μm. Porto das Barcas eggshells represent a discretispherulitic morphotype (1,23 mm thick).
This locality presents a nest 60-cm diameter containing many eggshells but an indeterminate number of eggs. Some embryonic bones were discovered between the eggshells including teeth and skull bones showing that the eggs belong to a saurischian, tentatively a sauropod dinosaur. Peralta nest eggshells are preliminary ascribed to obliquiprismatic morphotype (column: 0,56mm and mammilla: 0,21mm) probably related to Paimogo’s nest taxon (Lourinhanosaurus). Peralta site bears embryonic bones namely small theropod teeth associated with bone fragments, and unidentifiable dinosaur vertebra. Only eggshells have been collected at Casal da Rôla (ML1194). The eggshells (0,78mm thick) are prismatic morphotype and it was impossible to determine the pore system, the outer surface is smooth with no ornamentation.
Lourinhã formation has the oldest sauropod and theropod nest with embryos known so far.

Mateus, O., & Marzola M. (2014).  Dinosaur taphonomy in the Lourinhã Formation (Late Jurassic, Portugal). 7th International Meeting on Taphonomy and Fossilization, Taphos 2014. 60-61., Ferrara, Italymateus__marzola_2014_lourinha_taphonomy_ferrara_taphonomy_meeting_2014.pdf
Marques, M. I. F., & Mateus O. (2021).  Dinosaur tracksites from Portugal, focused on the carbonated platform of North and Central Lusitanian Basin. 3rd Palaeontological Virtual Congress. 210.: ISBN 978-84-09-36657-6 Abstractmarques_mateus_2021_pvc3_tracks.pdf

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Rotatori, F. M., Moreno-Azanza M., & Mateus O. (2018).  Dryosaurid ornithopods from the Late Jurassic of Portugal: an overview. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 166., Caparica, Portugal June 26th-July 1st, 2018: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstractrotatori_et_al_2018_eavp_abstract.pdf

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Rotatori, F. M., Moreno-Azanza M., & Mateus O. (2018).  Dryosaurid ornithopods from the Late Jurassic of Portugal: an overview. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 166., Caparica, Portugal June 26th-July 1st, 2018: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstract

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Vineyard, D. P., Jacobs L. L., Polcyn M. J., Mateus O., Schulp A. S., & Strganac C. (2009).  Euclastes from the Maastrichtian of Angola and the distribution of the Angolachelonia. Eugene Gaffney Turtle Symposium. , Royal Tyrrell Museum
Marzola, M., Mateus O., Milàn J., & Clemmensen L. B. (2017).  European affinities of the Late Triassic biota from Greenland are related to paleolatitude. 15th Annual Meeting of the European Association of Vertebrate Palaeontologists. 91, 61.: Zitteliana Abstract09._eavp_2017_-_marzola_et_al._2017._european_affinities_of_the_late_triassic_biota_from_greenland_are_related_to_paleolatitude.pdf

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Ezquerro, L., Balauz B., Coimbra R., Nuñez-Lahuerta C., Mateus O., Román T., & Moreno-Azanza M. (2021).  Evidence of sedimentary remodel of Jurassic theropod egg clutches (Lourinhã, Portugal). 18th Conference of the EAVP-Abstract book. 72-73. Abstractezquerro_et_al_2021_sedimentary_remodel.pdf

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Moreno-Azanza, M., Gasca J. M., Canudo J. I., Lázaro B. B., & Mateus O. (2016).  The evolution of the ornithischian eggshell: State of the art and perspectives. Abstracts with Programs, the 2016 Annual Meeting, the Palaeontological Society of Japan. 6., Fukui, Japanmoreno_azanza_et_al_2016_the_evolution_of_the_ornithischian_eggshell.pdf
Moreno-Azanza, M., Gasca J. M., Canudo J. I., Lázaro B. B., & Mateus O. (2016).  The evolution of the ornithischian eggshell: State of the art and perspectives. Abstracts with Programs, the 2016 Annual Meeting, the Palaeontological Society of Japan. 6., Fukui, Japan Abstract
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Polcyn, M. J., Bardet N., Amaghzaz M., Gonçalves O. A., Jourani E., Kaddumi H. F., Lindgren J., Mateus O., Meslouhf S., Morais M. L., Pereda-Suberbiola X., Schulp A. S., Vincent P., & Jacobs L. L. (2016).  An extremely derived plioplatecarpine mosasaur from the Maastrichtian of Africa and the Middle East. 5th Triennial Mosasaur Meeting- a global perspective on Mesozoic marine amniotes. 16-20(May 16-20, 2016), May 16-20, 2016., Uppsala, Sweden: Museum of Evolutiom, Uppsala University. Abstractpolcyn_et_al_2016_extremely_derived_mosasaur.pdf

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Polcyn, M. J., Bardet N., Amaghzaz M., Gon{\c c}alves O. A., Jourani E., Kaddumi H. F., Lindgren J., Mateus O., Meslouhf S., Morais M. L., Pereda-Suberbiola X., Schulp A. S., Vincent P., & Jacobs L. L. (2016).  An extremely derived plioplatecarpine mosasaur from the Maastrichtian of Africa and the Middle East. 5th Triennial Mosasaur Meeting- a global perspective on Mesozoic marine amniotes. 16-20, May 16-20, 2016., Uppsala, Sweden: Museum of Evolutiom, Uppsala University. Abstract

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Carrano, M., Mateus O., & Mitchell J. (2013).  First definitive association between embryonic Allosaurus bones and prismatoolithus eggs in the Morrison Formation (Upper Jurassic, Wyoming, USA). Annual Meeting of Vertebrate Paleontology. 101.: Journal of Vertebrate Paleontology, Program and Abstracts, 2013 Abstractcarrano_mateus_mitchell_2013_allosaurus_embryos_morrison_svp_abstract.pdf

Despite more than a century of collecting, resulting in one of the best-studied vertebrate fossil records anywhere in the world, the Upper Jurassic Morrison Formation has produced surprisingly few examples of dinosaur eggs associated with embryonic remains. Even more puzzling, none of these seem to pertain to the theropod Allosaurus, one of the most common and best-understood dinosaur taxa in the formation. Here we
report on a dinosaur nest site that has produced both abundant prismatoolithid eggshell and embryonic (or perinatal) bones of Allosaurus from Fox Mesa, Wyoming. This represents the first such discovery for any theropod in the Jurassic of North America. The nest is heavily weathered but contains a few ellipsoid eggshell clusters that suggest an egg size of about 8 x 6.5 cm. Study of the eggshell morphology and microstructure confirms that a single egg type is present throughout, which is indistinguishable from Prismatoolithus coloradensis. All of the identifiable embryonic materials pertain to theropods, and two premaxillae specimens show the five alveoli diagnostic for Allosaurus among Morrison theropods. This confirms the theropod origin of Prismatoolithus eggs and implicates Allosaurus as the specific Morrison parent taxon. As a result, it is now possible to assign several previous discoveries of dinosaur eggs and potential nests to Allosaurus, including the isolated egg from the Cleveland-Lloyd Quarry. This discovery
also calls into question prior assignments of Prismatoolithus eggs to ornithopods, and suggests that more detailed study of such sites is warranted. Prismatoolithus eggshells are also associated with the Upper Jurassic theropod Lourinhanosaurus from Portugal, along with larger embryos that exhibit four premaxillary alveoli.

Campos, H., & Mateus O. (2018).  The first record of placodonts in Portugal and its chronological and paleoecological implications. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 38.: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractcampos__mateus_2018_eavp_abstract.pdf

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Campos, H., & Mateus O. (2018).  The first record of placodonts in Portugal and its chronological and paleoecological implications. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 38.: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstract

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Pereira, T., Mateus O., & Moreno-Azanza M. (2018).  Fossil amphibians from Portugal. 1st Palaeontological Virtual Congress. online. Abstractpereira_et_al_2018_amphibians_portugal.pdf

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Pereira, T., Mateus O., & Moreno-Azanza M. (2018).  Fossil amphibians from Portugal. 1st Palaeontological Virtual Congress. online. Abstract

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Mateus, O., Jacobs L. L., Polcyn M. J., Myers T. S., & Schulp A. S. (2015).  The fossil record of testudines from angola from the turonian to oligocene. Society of Vertebrate Paleontology Annual Meeting. 177., Dallasmateus_et_al_2015_testudines_angola_svp_abstract.pdf
Ribeiro, C., Callapez P. M., & Mateus O. (2018).  Fossil vertebrates in the paleontological collections of the Science Museum (University of Coimbra, Portugal). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 163., Caparica, Portugal June 26th-July 1st, 2018: Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Abstractribeiro_et_al_2018_eavp_abstract.pdf

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Pereira, B., Mateus O., Kullberg J. C., & Rocha R. (2017).  The geotouristic potential of the Oeste Region of Portugal. 14th European Geoparks Conference | Abstracts Book 167. 167., Ponta Delgadapereira_et_al_2017_geotouristic_oeste.pdf
Moreno-Azanza, M., Mateus O., Bauluz B., Coimbra R., Ezquerro L., & Núñez-Lahuerta C. (2021).  Hatching in Portugal: a new look to old eggs. XIX Encontro de Jovens Investigadores em Paleontologia. 22. Abstractmoreno-azanza_et_al_2021_eggs_ejip.pdf

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Marzola, M., Mateus O., Wings O., Klein N., Mìlan J., & L.B.Clemmensen (2016).  The herpetofauna from the Late Triassic of the Jameson Land Basin (East Greenland): review and updates. XIV EAVP Meeting. 182., Haarlem, The Netherlands: XIV EAVP Meeting, Programme and Abstract Book
Marzola, M., Mateus O., Wings O., Klein N., M{\`ılan J., & L.B.Clemmensen (2016).  The herpetofauna from the Late Triassic of the Jameson Land Basin (East Greenland): review and updates. XIV EAVP Meeting. 182., Haarlem, The Netherlands: XIV EAVP Meeting, Programme and Abstract Book Abstract
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Estraviz López, D., & Mateus O. (2018).  The history of the Quaternary vertebrate paleontology in Portugal. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 65., Caparica, Portugal June 26th-July 1st, 2018: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractestraviz__mateus_2018_eavp_abstract.pdf

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Tschopp, E., Mateus O., Marzola M., & Norell M. (2018).  Indications for a horny beak and extensive supraorbital connective tissue in diplodocid sauropods. Annual Meeting of the Society of Vertebrate Paleontology. 229.: Society of Vertebrate Paleontologytschopp_et_al_2018_svp_abstract.pdf
Cavadas, B., Mestrinho N., & Mateus O. (2018).  Jurassic race: a collaborative pedagogical activity between paleontologists, mathematics and science education teachers. XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 41., Caparica, Portugal June 26th-July 1st, 2018: Abstract book of the XVI Annual Meeting of the European Association of Vertebrate Palaeontologists, Caparica, Portugal June 26th-July 1st, 2018. Abstractcavadas_et_al_2018_eavp_abstract.pdf

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